change prefix for kernelpatchbase 2.6.26

SVN-Revision: 13619

target/linux/s3c24xx/patches-2.6.26/1223-fix-glamo-mci-possible-timeout-overflow.patch.patch

@@ -0,0 +1,58 @@
+From 1d40ccabc74877cc47fa91490b772e9611215b39 Mon Sep 17 00:00:00 2001
+From: Andy Green <andy@openmoko.com>
+Date: Fri, 25 Jul 2008 23:06:21 +0100
+Subject: [PATCH] fix-glamo-mci-possible-timeout-overflow.patch
+
+The MMC stack hands us a timeout calibrated in SD_CLK clocks, but the
+Glamo can only deal with up to 65520 clocks of timeout.  If the stack
+handed us a request bigger than this, it would just wrap and the
+timeout we actually used would be way too short.
+
+With this patch if that happens, we use the longest timeout we can,
+65520 clocks and give it our best shot.
+
+Signed-off-by: Andy Green <andy@openmoko.com>
+---
+ drivers/mfd/glamo/glamo-mci.c |   19 ++++++++++---------
+ 1 files changed, 10 insertions(+), 9 deletions(-)
+
+diff --git a/drivers/mfd/glamo/glamo-mci.c b/drivers/mfd/glamo/glamo-mci.c
+index 0374446..505be5f 100644
+--- a/drivers/mfd/glamo/glamo-mci.c
++++ b/drivers/mfd/glamo/glamo-mci.c
+@@ -338,6 +338,7 @@ static int glamo_mci_send_command(struct glamo_mci_host *host,
+ {
+ 	u8 u8a[6];
+ 	u16 fire = 0;
++	u16 timeout = 0xfff; /* max glamo MMC timeout, in units of 16 clocks */
+ 
+ 	/* if we can't do it, reject as busy */
+ 	if (!readw_dly(host->base + GLAMO_REG_MMC_RB_STAT1) &
+@@ -447,15 +448,15 @@ static int glamo_mci_send_command(struct glamo_mci_host *host,
+ 		fire |= GLAMO_FIRE_MMC_CC_BASIC; /* "basic command" */
+ 		break;
+ 	}
+-	/* enforce timeout */
+-	if (cmd->data) {
+-		if (cmd->data->timeout_clks)
+-			writew_dly(cmd->data->timeout_clks >> 4, /* / 16 clks */
+-					host->base + GLAMO_REG_MMC_TIMEOUT);
+-		else
+-			writew_dly(0xfff, host->base + GLAMO_REG_MMC_TIMEOUT);
+-	} else
+-		writew(0xfff, host->base + GLAMO_REG_MMC_TIMEOUT);
++	/* enforce timeout, clipping at default 65520 clocks if larger */
++	if (cmd->data)
++		/* so long as there is one... */
++		if (cmd->data->timeout_clks &&
++		    /* ... and it is not longer than we can handle */
++		    (cmd->data->timeout_clks <= 0xffff))
++			timeout = cmd->data->timeout_clks >> 4; /* / 16 clks */
++
++	writew(timeout, host->base + GLAMO_REG_MMC_TIMEOUT);
+ 
+ 	/* Generate interrupt on txfer */
+ 	writew_dly((readw_dly(host->base + GLAMO_REG_MMC_BASIC) & 0x3e) |
+-- 
+1.5.6.3
+